How To Use Framing Square For Roof Pitch

Determine the slope or pitch of the roof by referring to your building plans.

How to use framing square for roof pitch.

The horizontal blade should align with the bottom edge of the board at 12 inches and the vertical tongue should align at the roof pitch. The trick here is understanding the number on the framing square is the unit rise per foot of run. With a torpedo level and a speed square you can pretty accurately gauge the pitch of any roof with a gable end photo 1. Place a 2 by 6 board on sawhorses to lay out the first full length or common rafter.

Lay a framing square flat on the board to be used as a rafter near one end. The thicker longer section is called the blade. More project and tips. Then place a torpedo level on the fat base of the rafter square and adjust the square until the level is level.

This will the first point of the rafter measurement line. On both the long and short arms of the framing square are marked various framing tables giving rafter lengths roof slopes and the proper angle of cuts for various roofing connections such as a rafter end abutting the ridge board the birds mouth cut at the rafter segment that rests atop a wall plate hip and valley rafter cuts and other information. The pitch is defined as the vertical distance a roof. How to build roof rafters using a framing square.

Place the pivot point against the shingles. 13 412 is the unit rise in inches per foot of our example roof run. The length of the plumb cut is determined by the width of the fascia board. Layout the plumb cut and level cut for the rafter tail.

Read the pitch on the side of the rafter square. I go over a. 228 204 x 12 13 412. The skinny length is called the tongue.

204 x number on framing square 228. Measure down y height from the long point of the rafter cut and make a mark. Number on framing square 228 204 x 12in. You are looking at the face of the framing square.